Calumma linotum

{{Short description|Species of lizard}}

{{speciesbox

| image = Blue-nosed chameleon (Calumma linotum) male Montagne d’Ambre.jpg

| image_caption = male, Montagne d’Ambre

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Glaw, F. |author2=Proetzel, D. |author3=Jenkins, R.K.B. |date=2015 |title=Calumma linotum |volume=2015 |page=e.T75976541A141978353 |doi=10.2305/IUCN.UK.2015-4.RLTS.T75976541A141978353.en |access-date=20 November 2021}}

| genus = Calumma

| species = linotum

| authority = (L. Müller, 1924)

| range_map =Calumma linotum distribution.png

| synonyms = *Chamaeleon linotus

| synonyms_ref =

}}

Calumma linotum, commonly known as the blue-nosed chameleon, is a chameleon species endemic to northern Madagascar,{{cite book|last1=Glaw|first1=Frank|last2=Vences|first2=Miguel|title=A Field Guide to the Amphibians and Reptiles of Madagascar|date=2007|publisher=Vences & Glaw Verlags|location=Cologne, Germany|isbn=978-3929449037|edition=3rd}} and common in the forests of Nosy Be.